Washing machine



FIG. 1 is a top, front, perspective view of a washing machine showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of details in the figures is included for the purpose of showing environmental portions of the washing machine and forms no part of the claimed design. 

The ornamental design for a washing machine, as shown and described. 